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In computing, inline expansion, or inlining, is a manual or compiler optimization that replaces a function call site with the body of the called function. Inline expansion is similar to macro expansion, but occurs during compilation, without changing the source code (the text), while macro expansion occurs prior to compilation, and results in different text that is then processed by the compiler.
In the C and C++ programming languages, an inline function is one qualified with the keyword inline; this serves two purposes: . It serves as a compiler directive that suggests (but does not require) that the compiler substitute the body of the function inline by performing inline expansion, i.e. by inserting the function code at the address of each function call, thereby saving the overhead ...
Inline function. For a long time, a function-like macro was the only way to define function-like behavior that did not incur runtime function call overhead. Via the inline keyword and optimizing compilers that inline automatically, some functions can be invoked without call overhead. Import
Parameterized macros are a useful source-level mechanism for performing in-line expansion, but in languages such as C where they use simple textual substitution, they have a number of severe disadvantages over other mechanisms for performing in-line expansion, such as inline functions. The parameterized macros used in languages such as Lisp, PL ...
The _Noreturn function specifier and the <stdnoreturn.h> header Type-generic expressions using the _Generic keyword. For example, the following macro cbrt(x) translates to cbrtl(x) , cbrt(x) or cbrtf(x) depending on the type of x :
Each time WPP encounters one of the macros that it is supposed to handle, it generates a trace message macro. In other words, if for example DoTrace is a tracing macro, WPP will generate a separate macro for each occurrence of DoTrace. The generated trace message macros are disambiguated by file name and line number, and, using various ...
Inline variables, which allows the definition of variables in header files without violating the one definition rule. The rules are effectively the same as inline functions __has_include, allowing the availability of a header to be checked by preprocessor directives [25] Value of __cplusplus changed to 201703L [26]
Inline vs. prologue – an inline comment follows code on the same line and a prologue comment precedes program code to which it pertains; line or block comments can be used as either inline or prologue